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        IS200WNPSH1A IS200WNPSH1AAA

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        General Electric IS200WNPSH1A IS200WNPSH1AAA is power supply daughterboard for GE Speedtronic Mark VI/VIe turbine control systems, providing isolated DC power to protection racks and I/O networks.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for IS200WNPSH1A IS200WNPSH1AAA

        • Manufacturer:
          General Electric
        • Part Number:
          IS200WNPSH1A IS200WNPSH1AAA
        • Product Family:
          GE Mark VI Gas Turbine Control
        • Product Type:
          Power Supply Daughterboard
        • Stock:
          1
        • Input Voltage (Nominal):
          +28 VDC
        • Input Transient Range:
          20 – 32 VDC
        • Output Voltage:
          -28 VDC ±5%
        • Number of Buffered Outputs:
          14 channels
        • Output Current (per channel):
          12 mA
        • Output Ripple (N28):
          ≤280 mV peak-to-peak / ≤1%
        • Operating Temperature:
          -30 to 70°C
        • Storage Temperature (AAA):
          –40°C to +85°C
        • Weight:
          0.45 kg
        • Estimated shipping dimensions:
          7.5×6.4×1cm
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Applications Monitoring & Control Safety & Compliance

        Features:

        • Independent Protection Rack Power – Safety-Driven Architecture
        • Intelligent Diagnostics with Open-Circuit Detection
        • Ruggedized Conformal Coating for Harsh Environments
        The General Electric IS200WNPSH1A IS200WNPSH1AAA provides dedicated power to the protection rack, ensuring that critical emergency trip functions (overspeed, vibration monitoring) remain operational even if the main control rack loses power. This architectural separation is fundamental to achieving functional safety compliance in turbine control applications.

        Unlike basic power boards, the General Electric IS200WNPSH1A IS200WNPSH1AAA features embedded diagnostic capabilities including open-circuit detection for vibration inputs and hardware validation via ID devices in cable connectors. When a mismatch or fault is detected, the system triggers alarms instantly, significantly reducing mean time to detect (MTTD) and preventing configuration errors.

        The General Electric IS200WNPSH1A IS200WNPSH1AAA (particularly the "AAA" suffix) is standard-equipped with a high-grade conformal coating that protects against moisture, industrial dust, and chemical contaminants—common threats in combined-cycle plants, offshore platforms, and high-humidity regions. The extended-temperature variant supports storage from –40°C to +85°C, ensuring long-term reliability.

        The IS200WNPSH1A IS200WNPSH1AAA General Electric Mark VI Power Supply Daughterboard may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        General Electric IS200WNPSH1A IS200WNPSH1AAA Mark VI Power Supply Daughterboard Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        General Electric IS200WNPSH1A IS200WNPSH1AAA Mark VI Power Supply Daughterboard

        General

        • Manufacturer GE / Bently Nevada
        • Model IS200WNPSH1A IS200WNPSH1AAA
        • Condition New Original ready stock
        • Product Family IS200EPSMG1A IS200EPSMG1ADC,IS200ESELH1A IS200ESELH1AAA,IS230SRLYH2A IS200SRLYH2AAA
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • IS200WNPSH1A IS200WNPSH1AAA powers GE Frame 5/6/7/9 gas turbine controls, supplying wetting voltage to contact-input cards for valve position, flame detection, and auxiliary status monitoring.
        • Steam Turbine Protection & Overspeed Detection:Provides dedicated power to the emergency trip system (ETS) rack, ensuring overspeed protection circuits remain active if the main control rack fails — a key API 670 requirement.
        • Terminal System Embedded Power for I/O Packs:Serves as an embedded power source for Mark VIe I/O packs and vibration monitoring modules, with open-circuit detection validating field wiring to Vibro-Meter sensors.
        • Marine & Offshore Power Generation:The conformal-coated "AAA" variant is built for offshore platforms, FPSO vessels, and marine turbines, with extended storage from –40°C to +85°C for Arctic/subsea conditions.
        • Real-Time Voltage Monitoring via Front‑Panel LEDs:Dual-color LEDs (+OK/–OK) provide instant visual confirmation of +28V and –28V rails during walk-down inspections.
        • Controller Fault Bit Annunciation:Automatically sends a fault bit to the Mark VI/VIe controller when an output rail falls out of tolerance, enabling centralized alarming via ControlST HMI.
        • Open-Circuit Detection for Field Wiring:Integrated diagnostic logic detects open circuits on field devices (especially vibration inputs), triggering alarms before wiring issues cause false trips.
        • Hardware Validation via ID Connectors:Reads embedded ID devices in cable connectors to verify correct terminal board (e.g., IS200TVBAH2A) connection, preventing configuration mismatches.
        • IEC 61508 Functional Safety Ecosystem Support:Not individually SIL-rated, but operates within Mark VI systems certified to IEC 61508. Its independent power to protection racks directly supports emergency trip functions.
        • UL 508 & CE Mark Certification:UL 508 listed and CE marked for industrial control equipment, meeting EU EMC and low‑voltage directives for global acceptance.
        • Conformal Coating for Hazardous Environments:The "AAA" variant features factory‑applied conformal coating, protecting against moisture, H₂S, and conductive contaminants — reducing creep corrosion and dendrite growth.
        • Emergency Trip System (ETS) Power Redundancy:Supports diode‑OR dual‑power configurations, ensuring a single supply failure does not compromise ETS trip capability — aligned with API 670 and IEC 61511.
        Description
        Engineered by General Electric for the Mark VI series, the General Electric IS200WNPSH1A IS200WNPSH1AAA operates as a localized voltage regulation module, converting backplane voltages into stable +28V and -28V DC outputs with a tolerance of ±5%. It supplies power through 14 individually buffered channels, each rated at 12 mA, ensuring consistent power delivery to logic components and host cards within the turbine control architecture. 

        Unlike standard power modules, the General Electric IS200WNPSH1A IS200WNPSH1AAA is specifically designed to provide independent power to the protection rack—the subsystem responsible for emergency trip functions including overspeed detection and vibration monitoring. This design ensures that even if the main control rack suffers a power failure, critical safety circuits remain fully operational, a key requirement for functional safety compliance. 

        The "AAA" suffix variant of the General Electric IS200WNPSH1A IS200WNPSH1AAA incorporates conformal coating and extended-temperature screening, widening the storage temperature range to –40°C to +85°C for marine or high-humidity environments. Additionally, the board features sophisticated diagnostic capabilities, including open-circuit detection for vibration inputs and hardware compatibility validation via ID devices embedded in cable connectors, which trigger alarms when mismatches are detected. 

        The General Electric IS200WNPSH1A IS200WNPSH1AAA supports automatic system integration via GE's ToolboxST/ControlST application. Once installed, the daughterboard can be recognized and monitored through the host card's diagnostic registers, with no standalone firmware loading required. Its compact daughterboard stack configuration minimizes footprint while maximizing functional density within crowded control cabinets. 
        Revisions

        Revision Part #

        Also known as

        IS200WNPSH1ABA
        IS200WNPSH1B-BA, Series -BA, Rev -BA
        Get Parts Quote
        IS200WNPSH1AAA
        IS200WNPSH1A-AA, Series -AA, Rev -AA
        Get Parts Quote
        Alternative Names
        IS200WNPSH1A IS200WNPSH1AAA 1S200WNPSH1A 1S200WNPSH1AAA IS2OOWNPSH1A IS2OOWNPSH1AAA IS200WNPSHIA IS200WNPSHIAAA IS200EPSMG1A IS200EPSMG1ADC IS200ESELH1A IS200ESELH1AAA IS230SRLYH2A IS200SRLYH2AAA
        Technical notes
        The General Electric IS200WNPSH1A IS200WNPSH1AAA requires a regulated +28 VDC nominal input (20–32 VDC transient tolerated) and provides isolated -28 VDC output with ≤280 mV peak-to-peak ripple. Hot-swap is NOT supported—power must be off for 5 minutes before insertion or removal to prevent backplane arcing. The board occupies one standard Mark VI daughter-card slot and features dual-color front LEDs: "+OK" (green) indicates +28V good, "–OK" (green) indicates –28V good; either LED off sends a fault bit to the controller.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        What is the input voltage requirement for the General Electric IS200WNPSH1A IS200WNPSH1AAA, and does it support redundancy?
        The General Electric IS200WNPSH1A IS200WNPSH1AAA requires a nominal +28 VDC input, with a transient tolerance of 20–32 VDC. The board features on-board TVS protection and diode-OR configuration, allowing dual-power redundancy when two independent +28V sources are connected.
        How many buffered outputs does the General Electric IS200WNPSH1A IS200WNPSH1AAA provide, and what is the current limit per channel?
        The General Electric IS200WNPSH1A IS200WNPSH1AAA provides 14 individually buffered outputs, each rated at 12 mA. The maximum total output current is 400 mA, with normal operating current approximating 540 mA under load distribution. Output voltage is -28 VDC ±5% with ripple ≤280 mV peak-to-peak.
        Does the General Electric IS200WNPSH1A IS200WNPSH1AAA support hot-swap replacement?
        No. The General Electric IS200WNPSH1A IS200WNPSH1AAA does NOT support hot-swap. Power must be off for 5 minutes before insertion or removal to prevent backplane arcing and potential damage to the board or adjacent components.
        Is the General Electric IS200WNPSH1A IS200WNPSH1AAA compatible with third-party I/O modules?
        The General Electric IS200WNPSH1A IS200WNPSH1AAA is designed specifically for GE Mark VI/Mark VIe ecosystems. While the power outputs (28V rails) are standard DC voltages, hardware compatibility validation via ID connectors may restrict operation with non-GE modules. Always verify compatibility through GE's ControlST/ToolboxST before deployment.
        What is the difference between IS200WNPSH1A and IS200WNPSH1AAA?
        The General Electric IS200WNPSH1A IS200WNPSH1AAA share identical core functionality. The "AAA" suffix adds conformal coating and extended-temperature screening to the base board, widening the storage temperature range to –40°C to +85°C for marine or high-humidity environments. The "AAA" variant is recommended for harsh environmental conditions.

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